Lock mechanism for breech-loading guns.



A. T. DAWSON & T. BUOKHAM.

LOCK MBGHANISM OI BRBEGH LOADING GUNS.

APPLICATION FILED JAN. 26, 1914.

Patented Nov. 3, 1914.

2 SHEETS-SHEET 1.

THE NORRIS PETERS n1. PHOTO-LITHO.. WASHINGTON. D. C.

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A. T. DAWSON & G. T. BUGKHAM.

LOOK MECHANISM OF BREBOH LOADING GUNS.v APPLICATION FILED JAN. 26, 1914.

1,1 16,026. Patented Nov. 3, 1914.

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WITNESSES INVENTORS'.

H NORRIS PETERS CO. PHOTO Ll'rn x. WASHING TON. u. 1..

v Dawson,

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ARTHUR.TREVOR.DAVJSQN.AND Tl -IQMASGKHAM, CF WESTMINSTER, LONDON, ENGLAND, ASSIGNORS, TO VJCKERS LIMITED, CIR-WESTMINSTER,

ENGLAND.

To-allwhom it may concern:

' Be it known that we, ARTHUR TREVOR knight, and GEORGE. THGMAS 'BTUGKHAMZ, both subjects. of the King of Great Britain, residing at Vickers House, Broadway, Westminster, in the county of London, England, have invented certain new and useful Improvements in or Relatingj to the Lock Mechanism. of Breech-Loading Guns, of which the: following is a specification.

This invention relates to. lock mechanism of the kind having a re-priming device; that comprises a primer magazine and. a bolt which is carried by the laterally moving lock frame and is used for introducing a new primer from the magazine into the primer chamber of the vent axial.

According to this invention theprimer magazine is in the form of a hopper carried by the lock frame and the primers therein are under the control of a device which permits theprimers to escape from the hoppers one by one and which is also carried by tlielock.

frame and capable of being actuated either by means of a cam on the box slide during the lateral movement of the lock frame or by the mechanism employed for cooking the firing pin or striker of the bolt. I

In order that the said invention may be clearly understood and readily carried into effect, we will describe the same more fully with reference to the accompanying drawings in which:

Figures 1, 2 and 3 are transverse sections through the hopper showing a constructional form of our invention in which the device for controlling the primers is in the form of a cam on the box slide, Fig. 1 showing the position of the primers immediately prior to the insertion of the lowermost one into the primer chamber and Fig. 2 after this primer has been inserted, while Fig. 3 shows the position of the parts when the magazine is empty. Figs. 4 and 5 are transverse sections showing a constructional form of the invention in which the device for controlling the primers is actuated by the mechanism employed for cooking the firing pin of the bolt, these figures indicating the position of the parts respectively prior to and after the retraction of the bolt,

tion with a part in section and a sectional Specification 0t Iietters' Patent.

LOCK MECHANISM OF BREECHLOADING' GUNS.

Patented Nov. 3, 1914.

Application filed: January 25, 181%.; Serial L10.- 814.5%.-

plan-ofthemechanism for actuating the device-of Figs. .hand 5.

Inrallthese figures A represents the hopper, Btlie bolt, (3 the device for controlling the movements; of the primers, and D the lockframe carrying the hopper, the bolt and the said device;

The: inventionis, in. all the examples illustrated, shown applied to the form of lock mechanism described in the specificatiOI-LOf the prior U. S. Patent, No. 1,095,558. In the construction illustrated by Figs. 1 13.0.8, wherein the aforesaid device is. moved by a cam on the box slide, the device C is in the form of a lever pivoted at c to the. lock frame. D carrying the hopper. A, the upper I. the; said lever is adaptedzto cooperate with a cam slot. or; groove E in the box slide during the opening movements of the lock frame, to permit. one. of. the primersv to escape from the hopper A. and come to rest upon the bolt sleeve.

During the closing movement of the lock frame the cam slot or groove E causes the upper end of the said lever to engage with the under side of the primer that is situated immediately above the one resting on the bolt sleeve (Fig. 1). When the bolt sleeve is retracted by the cooking handle 0 (Fig. 7 described in the above mentioned prior specification, the primer that is resting on the bolt sleeve falls into position in front of the bolt head (Fig. 2) and is inserted into the vent axial when the bolt is moved forward by the cock ing handle, the aforesaid lever preventing the primer that is now the lowermost one in the hopper from escaping. The hopper may be provided with a contrivance for indicating when it is empty, this contrivance comprising as shown, a hinged plate -or leaf A which until the magazine is empty, lies hidden within a suitable cavity or recess A (Figs. 1 and 2) but is under the control of a light spring and has a toepiece a arranged in the path of the primers in the hopper so that when the last of the primers escapes from the hopper, the spring moves the plate or leaf into a visible position (Fig. 3) to indicate that the hopper should be re-charged.

In the construction illustrated by Figs. 4: to 6 in which the aforesaid device C is adapted to be moved by the mechanism employed for cooking thefiring' pin or striker, the said device may be in the form of an esoapement lever pivoted at '0 to' the look frame and connected to theaforesa'id cocking handle C by a lever 0 carried by the lock frame D, this lever C enga 'ng with a cam slot' C formed in an arm by the handle 0 this armalso has another slot C for operating the bolt; The escapement lever is normally 6. prior to them:-

tuation ofthe cocking ha1'1dle to .'retractthebolt) .in the posit-ion shownin Fig. land in full'lines in Fig. 7 in which position the lowermost primer is 'disposed between the arms of the said lever. Movement :of the cocking handle in ,the *direction indicated by thearrow in Fig. '7 Iretractsthe bolt and displaces the escapement lever into the position shown in Fig. 5' and in broken'lines in Fig. 7 in which position the lowermost primer is permitted to fall in frontof the bolt head and the next primer. is prevented from escaping from the hopper. .The movement of the cooking handle in the direction to move the boltforwarddisplaoes the es-f capement lever into the positlon shown, in

Fig. 4 and'in full lines in Fig.7 to permit the last mentioned primer in the hopper to 0 move into a position between the two arms ofthe escapement leveri 'as'aforesaid.

co ies of this patent may pe obtained. an

operated What' we claim and desire to s oureiby combination with the bolt and lock frame,

one and which is also carried by the loo and the primer "magazine carried by the I bolt and adapted to permit theprimer sto escape from themagazine one by one, and a stationary part having a oam. groove j 1 adapted to actuate said lever idiiring the opening andclo-sing movements of thelockf" frame I v h v In testimony whereof we aflix our s1gna lockiframe; of a lever independent of thetures' in the presence of two witnesses,

Witnesses;

HENRY KING, I

Washington, D. G.

*ARTHU REVOR D WSON-1" 15 cnonsn THOMAS BUoKHAMg five cents each, by addressing the Commissioner of Patents, 

